NASA's 18.8 million-cubic-foot super pressure balloon hit another milestone at 9:17 a.m. EDT Monday, May 31, crossing the 169.24 east longitude line, officially completing its first circumnavigation of the globe. The balloon, flying the Compton Spectrometer and Imager (COSI) payload, achieved the milestone 14 days, 13 hours and 42 minutes after launching from Wanaka Airport, New …
Super Pressure Balloon Circumnavigates Globe After 14 days of Flight
